Incubus, Manhunter

Sadism(Whenever a creature you don't own takes
damage and is not destroyed, trigger the following
effect.), Incubus, Manhunter gets +1/+1 and first strike until end turn.
haste, venom (Whenever this creature blocks or
becomes blocked, put a -1/-1 counter on each creature blocked by or blocking it)
Fetch me another plaything. This one seems to have
broken.